At a glance
- Battery Charging Voltage
- Boost 28.8 V, float 27.6 V
- Charging Current
- 13.5 A max., adjustable 6.75 to 13.5 A
- Recommended Battery Capacity
- 45 to 155 Ah
- Battery Type
- Lead acid (Pb)
- Output Voltage
- 28.8 V DC in power supply mode, 13.5 A rated
- Rated Output Current
- 13.5 A
Model NPP-450-24Current modelMEAN WELL NPP-450-24 Battery Charger, 24 V battery, 13.5 A
Price on request
At a glance
- Battery Charging Voltage
- Boost 28.8 V, float 27.6 V
- Charging Current
- 13.5 A max., adjustable 6.75 to 13.5 A
- Recommended Battery Capacity
- 45 to 155 Ah
- Battery Type
- Lead acid (Pb)
- Output Voltage
- 28.8 V DC in power supply mode, 13.5 A rated
- Rated Output Current
- 13.5 A
Charges lead acid battery banks for radio backup, surveillance and vehicles such as buses, trucks and camper vans, or works as a DC power supply. Battery charger, 24 V battery, 13.5 A. Works as a battery charger or a power supply, mode selected on the panel connector.
Part of the MEAN WELL NPP-450 series. Compare all 4 models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The MEAN WELL NPP-450-24 is a battery charger from the NPP-450 series (450 W High Reliable Ultra Wide Output Range Battery Charger and Power Supply 2-in-1), rated 24 V battery, 13.5 A.
What it is used for
Charges 24 V lead acid battery banks with a 3 stage curve, or can be switched to work as a constant voltage DC power supply for general loads. MEAN WELL lists applications such as radio system backup, surveillance systems, industrial automation machinery, camping cars, buses, heavy duty trucks and specialty vehicles.
Key features
- Works as a battery charger or a power supply, mode selected on the panel connector.
- Output voltage and current adjustable via potentiometer.
- 3 stage charging curve in charging mode.
- Protections: short circuit, overload, over voltage, over temperature.
- Thermally controlled DC fan.
- Remote ON/OFF control.
Key Specifications
- Battery Charging Voltage: Boost 28.8 V, float 27.6 V (default, charger mode).
- Charging Current: 13.5 A max. (constant current), adjustable 6.75 to 13.5 A.
- Recommended Battery Capacity: 45 to 155 Ah.
- Battery Type: Lead acid (Pb).
- Output Voltage: 28.8 V DC in power supply mode, 13.5 A rated.
Buying considerations
Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.
Installation considerations
MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.
Features
Size and fit
- Dimensions
- 205 x 135 x 55 mm (L x W x H)
- Weight
- 1.38 kg
Technical specifications
Key facts
- What is it?
- Battery chargerBrand MEAN WELL, model NPP-450-24
- What does it output?
- 28.8 V DC in power supply mode, 13.5 A rated, 13.5 A, 453.6 W
- What input does it accept?
- 90 to 264 V AC
- Which documents are available?
- Datasheet, certificate Open documents
RelatedSeriesMEAN WELL NPP-450 series, 4 modelsDocumentsAll MEAN WELL documents
Output
- Battery Charging Voltage
- Boost 28.8 V, float 27.6 V (default, charger mode)
- Output Voltage Adjustment Range
- 21 to 42 V by built-in potentiometer
- Charging Current
- 13.5 A max. (constant current), adjustable 6.75 to 13.5 A
- Rated Output Power
- 453.6 W
- Output Voltage
- 28.8 V DC in power supply mode, 13.5 A rated
- Ripple and Noise (max.)
- 300 mVp-p (power supply mode)
- Efficiency (typ.)
- 93%
- Rated Output Current
- 13.5 A
Input
- Battery Type
- Lead acid (Pb)
- Input Voltage Range
- 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage)
- Input Frequency Range
- 47 to 63 Hz
- Power Factor
- PF >0.98 at 115 V AC; PF >0.95 at 230 V AC (full load)
Protection
- Withstand Voltage
- I/P-O/P: 3 kV AC; I/P-FG: 2 kV AC; O/P-FG: 0.5 kV AC
Environment
- Operating Temperature
- -30 to +70 °C (refer to derating curve)
- Operating Humidity
- 20 to 95% RH non-condensing
- Cooling
- Thermally controlled DC fan
Physical
- Dimensions
- 205 x 135 x 55 mm (L x W x H)
- Weight
- 1.38 kg
Approvals
- MTBF
- 1056.9K hrs min. Telcordia SR-332 (Bellcore); 118.5K hrs min. MIL-HDBK-217F (25 °C)
Other
- Recommended Battery Capacity
- 45 to 155 Ah
- Charging Curve
- 3 stage
- Alarm Signals
- Charger OK and Battery Full TTL signals
- Series
- NPP-450
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|---|
| Power Output | 453.6 W |
Downloads
Documentation
- NPP-450 series datasheetDatasheet · Family · meanwell.comDownload
Certificate and compliance document (1)
- NPP-450 CE declaration of conformityCertificate · Family · meanwell.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What input voltage does the NPP-450-24 accept?
MEAN WELL lists 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage) for this model.
What battery charging does the NPP-450-24 provide?
The datasheet gives battery charging voltage Boost 28.8 V, float 27.6 V (default, charger mode), charging current 13.5 A max. (constant current), adjustable 6.75 to 13.5 A.
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